Hydrocarbon-lamp.



PATENTED OCT. 6, 1903.

` J. BYS'IROM.

`HYDROGMtBOII LAMP. APPLmA'fIoN FILED APR. 1e, ma.

No MODEL.

A IVEILQRL' i i 4 l r In 6511541344 UNiTED STATi-zs Patented October 6, 190955.

PATENT Orricn.'

COMPANY, OF CHICAGQKILLINOIS, A CORPORATION OF ILLINOIS.

fHYDuooAFusoN-Lruvl P.

SPECIFICATION forming part of Letters Patent No. 740,392, dated October 6, 1903.

Application filed April 18, 1902.

production of a hanging lamp wherein the needle-valve extends downward through the' lamp-body to a point easy of access to a person standing on the Iioor below the lamp.

A further object of the invention is the production of an improved burner for hydrocarbon-lamps.

In the accompanying drawings, Figure l is a vertical central section through a lamp embodying the features of my invention.

Fig. 2 is a side elevation of my improved burner. Fig. 3 is a transverse section on dotted line 3 3 of Fig.- 2.

In the construction of a lamp embodying this invention-I provide a body portion A', having upright arms A for suspending the' lamp, and a hanged base A2, upon which the lamp may rest when placed upon the ioor or a suitable support. In this instance I have made the body portion substantially globular and have provided it with an air-supply valvev A5, by means of which the hydrocarbon with` in the lamp-body is put under air-pressure. A tube A4 extends vertically through the lamp-body, said tube being secured to the top and bottom of said lamp-bodyq'on the eX- terior walls thereof, by means of the flanged heads A5. i

A burner B surmonnts the lamp-body A and is secured thereto by means of the tubular supporting-stem B. At its upper end this stem has a transverse portion B2, screwthreaded interiorly and exteriorly to receive p a supply-valve B3. At the inner end of the transverse portion B2 is formed the body portion Bi of the burner, comprising the depending central tubular stem B5, screw-threaded inside and outside to receive the needle-valve, to be later herein described, and two upright tubular arms B5 and B7, supporting the generating-head B5, over which head and formed integral therewith is provided a mixing-chamber B5. The generating-head has a central Serial No. 103,588. (No model.)

perforation B to coincide with the tubular stem B5 for the needle-valve, and this opening is internally screw-threaded to receive a Buusen tube B11, extending upward within the mixing-chamber B9. At its upperend the mixing-chamber has an internal shoulder B12 for yreceiving a gauze screen and in its lower end 4has an opening B15 for a subjet adapted to heat the generating-head B5. A ni pple B14, having a minute escape-orilice B15, is fixed within the body portion B1 and in line with the perforation B1? in the generating-head B5, also alined with the Bunsen tube B11. The generating-head is provided with the two ducts B15 and B17, communicating with each other and connecting the upper ends of the tubu- Vlararms B5 and B7, respectively.

C is a needle-valve stem threaded near its upper end to engage the corresponding screwthreads within the tubular stem B5 and having at its forward end a wire point C. The valve-stem extends downward through the tubeA1 in the body portion of the lamp and terminates below said lamp-body in the button C2.

D and D are two gauze screens, of wire or other suitable material, placed in the upper part of the mixing-chamber B9, the screen D being in circular disk form and adapted to lie upon the shoulderA B12 Within said mixing-chamber, and the screen D being in cap form, its lower edge adapted to rest upon the screen D,

E represents an initial generating-cup having the tubular central stem E' for surrounding the depending needlevalve stem B5, upon which the generating-cup is supported.

The body portion of the lamp is provided with a housing F, and surrounding the mixing-chamber is the usual gallery Ff for supporting a mantle and globe. (Not shown.)

In operation the body portion A of the lamp ispartially filled with hydrocarbon and airpressure applied by means of an air-pump. The supply-valve Biis opened, and the body portion B4 of the burner B is heated by any suitable means, as by burning alcohol in the generating-cup E. As soon as gas is generated in the body portion of the burner the needle-valve Cis opened, permitting said gas to escape in a jet upward through the Opening B10'n the generating-head, through the Bunsen tube B11, and into the mixing-charnber B9. The greater quantity of this gas passes upward through the screens D and D' and burns upon the surface of the mantle. A part ol the gas in the mixing-chamber B9 is forced downward through the opening B13 and there burns in a subjet for heating the generating-head. The course of the hydrocarbon and the gas formed therefrom is through the tubular stem B', the transverse portion B2 thereof, passing the supply-valve B3, into the body portion B4, upward through the arm B7, through the ducts B16 and B17 in the generating-head B8, downward through' the arm B6 into the body portion B4 to the needle-valve, and through the orifice B15 into the Bunsen tube B11. The needle-valve passing downward through the lamp-bodyis easy of access to the operator, and the tiame of the lamp when suspended from the ceiling or a bracket may be 'regulated without taking down the lamp or compelling the operator to climb up on a ladder or chair to reach the regulating-valve.

I claim as my inventionl. In a burner for hydrocarbon-lamps, in combination, a body portion provided with a gas-escapo orifice; a generating-head located above said body portion; two tubular arms communicating between said body portion and said generating-head, said head having ducts connecting the upper ends of said tubular arms; a needle-valve for closing said escape-orifice; a mixing-chamber located above .said generating-head and provided in its lower end with an opening for a subjet; and agauze screen in the upper end of said mixingchamber.

' 2. In a burner for hydrocarbon-lamps, in combination, a tubular. supporting-stem having communication with the interiorof the lamp-body; a transverse tubular portion for said stem; a supply-valve for said transverse portion; a body portion having'a gas-escape orifice; a tubular arm communicating with the interior of said body portion; a generating-head; a second tubular arm communieating with said body portion, said generating` head having ducts connecting said tubular arms; a needle-valve for closing said escapeorifice; a mixing-chamber having an opening Afor a subjet; a Bunsen tube within said mixing-chamber, said tube being alined with and open to said escape-orifice; and agauze screen in the upper end of said mixing-chamber.

3. In a hydrocarbon-lamp, in combination, a lamp-body; a tube extending through said lamp-body; a tubular supporting-stem having communication with the interior of said lamp-body; a transverse tubular portion for said stem; a body portion having a gas-escape orifice; a tubular arm communicating with the interior of said body portion; ageneratinghead; a second tubular arm communicating with said body portion, said generating-head having ducts connecting said tubular arms; a needle-valve for closing said escape-orifice, the stem of said valve lying within the tube extending through the lamp-body; a mixingchamber located above said generating-head,

/said chamber having in its lower end an opening forasubjet; and a gauze screen in the upper end of said mixing-chamber.

JOHN BYSTROM.

Witnesses: t

L. L. MILLER, GEO. L. CHINDAHL. 

